X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=sha1.cc;h=321807552535057a26c022e32d408b16b8ff4cdc;hb=030ddd80e04aa65738bf21557dd541bec757de5b;hp=7a9c0fb52a377f27b5a747b9eb1223902ba645b9;hpb=25b6639fb1783e0061affa177e6d6d2131c457f5;p=cumulus.git

diff --git a/sha1.cc b/sha1.cc
index 7a9c0fb..3218075 100644
--- a/sha1.cc
+++ b/sha1.cc
@@ -30,9 +30,14 @@
 #include "sha1.h"
 
 #include <stddef.h>
+#include <stdio.h>
 #include <string.h>
 #include <arpa/inet.h>
 
+#include <string.h>
+
+using std::string;
+
 /* SWAP does an endian swap on architectures that are little-endian,
    as SHA1 needs some data in a big-endian form.  */
 #define SWAP(n) htonl(n)
@@ -344,8 +349,46 @@ void SHA1Checksum::process(const void *data, size_t len)
     sha1_process_bytes(data, len, &ctx);
 }
 
+bool SHA1Checksum::process_file(const char *filename)
+{
+    FILE *f = fopen(filename, "rb");
+    if (f == NULL)
+        return false;
+
+    while (!feof(f)) {
+        char buf[4096];
+        size_t bytes = fread(buf, 1, sizeof(buf), f);
+
+        if (ferror(f)) {
+            fclose(f);
+            return false;
+        }
+
+        process(buf, bytes);
+    }
+
+    fclose(f);
+    return true;
+}
+
 const uint8_t *SHA1Checksum::checksum()
 {
     sha1_finish_ctx(&ctx, resbuf);
     return (const uint8_t *)resbuf;
 }
+
+string SHA1Checksum::checksum_str()
+{
+    uint8_t resbuf[20];
+    char hexbuf[4];
+    string result = "sha1=";
+
+    sha1_finish_ctx(&ctx, resbuf);
+
+    for (int i = 0; i < 20; i++) {
+        sprintf(hexbuf, "%02x", resbuf[i]);
+        result += hexbuf;
+    }
+
+    return result;
+}